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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> SMTP problems >> CMail's MAIL FROM overflow

CMail's MAIL FROM overflow

Vulnerability Assessment Summary Overflows a buffer in the remote mail server Detailed Explanation for this Vulnerability Assessment There seem to be a buffer overflow in the remote SMTP server when the server is issued a too long argument to the 'MAIL FROM' command, like : MAIL FROM: AAA[...]AAA@nessus.org Where AAA[...]AAA contains more than 8000 'A's. This problem may permit a possible hacker to prevent this host to act as a mail host and may even permit him to execute arbitrary code on this system. Solution : Contact your vendor for a patch Network Security Threat Level: High Networks Security ID: 633 Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison

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